X=int(input())
if X<=599:
    k=8
elif 600<=X<=799:
    k=7
elif 800<=X<=999:
    k=6
elif 1000<=X<=1199:
    k=5
elif 1200<=X<=1399:
    k=4
elif 1400<=X<=1599:
    k=3
elif 1600<=X<=1799:
    k=2
else:
    k=1
print(k) X=int(input()) X int(input()) int input() input if X<=599:
    k=8
elif 600<=X<=799:
    k=7
elif 800<=X<=999:
    k=6
elif 1000<=X<=1199:
    k=5
elif 1200<=X<=1399:
    k=4
elif 1400<=X<=1599:
    k=3
elif 1600<=X<=1799:
    k=2
else:
    k=1 X<=599 X 599 k=8 k 8 elif 600<=X<=799:
    k=7 600<=X<=799 600<=X 600 X 799 k=7 k 7 elif 800<=X<=999:
    k=6 800<=X<=999 800<=X 800 X 999 k=6 k 6 elif 1000<=X<=1199:
    k=5 1000<=X<=1199 1000<=X 1000 X 1199 k=5 k 5 elif 1200<=X<=1399:
    k=4 1200<=X<=1399 1200<=X 1200 X 1399 k=4 k 4 elif 1400<=X<=1599:
    k=3 1400<=X<=1599 1400<=X 1400 X 1599 k=3 k 3 elif 1600<=X<=1799:
    k=2 1600<=X<=1799 1600<=X 1600 X 1799 k=2 k 2 k=1 k 1 print(k) print k k=4 4 k k=3 3 k k=2 2 k k=7 7 k X=int(input()) int(input()) X k=8 8 k k=1 1 k k=5 5 k k=6 6 k
X=int(input())
if X<=599:
    k=8
elif 600<=X<=799:
    k=7
elif 800<=X<=999:
    k=6
elif 1000<=X<=1199:
    k=5
elif 1200<=X<=1399:
    k=4
elif 1400<=X<=1599:
    k=3
elif 1600<=X<=1799:
    k=2
else:
    k=1
print(k)